我试图在OSX Mavericks上安装sqlite3 gem,我遇到了一个看起来很棘手的错误.通过谷歌搜索,我没有设法找到有同样问题的其他人.
基本上,当我运行gem install命令时,会发生以下情况：
Building native extensions. This could take a while... ERROR: Error installing sqlite3: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb checking for sqlite3.h... yes checking for sqlite3_libversion_number() in -lsqlite3... yes checking for rb_proc_arity()... yes checking for rb_integer_pack()... no checking for sqlite3_initialize()... yes checking for sqlite3_backup_init()... yes checking for sqlite3_column_database_name()... no checking for sqlite3_enable_load_extension()... no checking for sqlite3_load_extension()... no checking for sqlite3_open_v2()... yes checking for sqlite3_prepare_v2()... yes checking for sqlite3_int64 in sqlite3.h... yes checking for sqlite3_uint64 in sqlite3.h... yes creating Makefile make "DESTDIR=" compiling backup.c compiling database.c database.c:300:1: warning: control may reach end of non-void function [-Wreturn-type] } ^ 1 warning generated. compiling exception.c compiling sqlite3.c compiling statement.c linking shared-object sqlite3/sqlite3_native.bundle clang: error: unknown argument: '-multiply_definedsuppress' [-Wunused-command-line-argument-hard-error-in-future] clang: note: this will be a hard error (cannot be downgraded to a warning) in the future make: *** [sqlite3_native.bundle] Error 1 Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.9 for inspection. Results logged to /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.9/ext/sqlite3/gem_make.out
我不知道铿锵是什么,但是宝石似乎正在传递一个可能被弃用的论点或什么？任何对这些东西有更多了解的人都有任何想法吗？
解决方法
Mavericks中新版本的XCode显然附带了一个编译器,可以将未知的传递参数视为错误.
要解决此问题,请将环境变量设置为ARCHFLAGS = -Wno-error = unused-command-line-argument-hard-error-in-future,以便将错误降级为警告.
所以要安装sqlite3 gem：
ARCHFLAGS = -Wno-error = unused-command-line-argument-hard-error-in-future gem install sqlite3
参考：http://bruteforce.gr/bypassing-clang-error-unknown-argument.html